Proximity switching equipment

作者: Norman Arthur Forbes

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摘要: Covers equipment for a plumbing fixture, such as wash basin, lavatory, etc., employing photo-conductive cell structure mounted within view tube pointed in the direction of user fixture. The photo will recognize or respond to presence absence vicinity may act trigger switch initiate operation fixture transmit water therethrough and then control apparatus shut off flow after has removed his hands from basin himself structure.

参考文章(7)
Robbins Alex, Electro-optical monitor systems ,(1964)
Knud Harald Storm Johansen, Automatic installation for washing hands ,(1966)
Francis Oliver Thomas, Light control device ,(1933)
Helmer Grover H, William Hoffman Harry, Photoelectric inspection device ,(1943)